Aastra Telecom SIP 480I - Manual (Page 379)

Operational, Basic, and Advanced Parameters
41-001129-00 Rev 09, Release 1.4.1 A-89
Configuration Parameters
Appendix A BLF Subscription Period Settings
Parameter –
sip blf subscription period
BLF Subscription Period
(in Web UI)
Aastra Web UI Advanced Settings->Global SIP
->Advanced SIP Settings
Configuration Files aastra.cfg, .cfg
Description Specifies the time period, in seconds, that the IP phone resubscribes the
BLF subscription service after a software/firmware upgrade or after a
reboot of the IP phone.
Format Integer
Default Value 3600
Range 120 (2 minutes minimum value)
Example sip blf subscription period: 180